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Fluorescent lamps are increasingly used in daily life, in which the gas discharge is the lighting principle. Due to the internal nonlinear characteristics of the lamp tube, harmonic currents are produced when the voltage source is directly connected to the lamp. Furthermore, in order to maintain the stable output of the lighting device, the ballast circuit is used. In practice, accurate fluorescent...
Field measurements of voltage and current is the most effective way for characterizing the electric response of an EAF that describe the nonlinear behavior of AC EAF loads. Sufficient measured information can be adopted to develop an appropriate EAF model. In this paper, two classic methods based on measured data, harmonic current injections and equivalent harmonic voltage sources, for the EAF load...
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